The oxygen consumption rate,the ammonia excretion rate and the oxygen-nitrogen ratio of Coreius guichenoti under different water temperature(10,15,20,25,30℃)as well as the temperature coeffi-cient(Q10)in different range of water temperature were studied to discuss the temperature response characteristic of the respiratory metabolism of the C.guichenoti.The blood physiological and biochemical parameters such as hemoglobin,glucose,lactic acid and cortisol under different water temperature are determined.The results showed that the oxygen consumption rate,ammonia excretion rate and hemoglobin content of the C.guichenoti increased first and then decreased with the water temperature increase.The Q10 values of oxygen consumption rate and ammonia excretion rate decreased significantly in the range of 25～30℃.The oxygen-nitrogen ratio in 10℃group was significantly lower than that in other groups,but there was no significant difference among all groups except 10℃group.The serum glucose in the 10℃group was significantly higher than that in the other groups except the 25℃group.With the increase of water temperature,lactic acid content firstly increased and then decreased,and cortisol content firstly decreased and then increased.In addition,water temperature significantly affeceing the diurnal variation of oxygen consumption rate.In the range of 15～25℃,the diurnal variation of the oxygen consumption rate was more significant in the night than in the day.In contrast,the dai-ly difference was not apparent in the 10℃and 30℃groups.The overall oxygen consumption rate of 15～25℃groups was higher than that of 10 and 30℃group.In conclusion,the respiratory metabolism of C.guichen-oti was relatively stable in the water temperature range of 15～25℃.
NETL
NSTL
维普
万方数据
